Kodi does not see Movies.

Hello
I have movies in 2 TBB external SSD and I could watch them via Kodi installed on the TV box. I had to reset the TVbox to factory settings. Now it does not see the movies in the SSD, more precisely it sees the folders but not the movies. Movies can be viewed with the file manager. I can play movies with VLC but Kodi doesn’t see it. When I connect the SSD to the PC, it sees the files. Could you help me?